function tankuang(value) {
    var value=value;
    var vars=$(".hutankuang").val();
    console.log(vars)
    if(vars==""||vars==null||vars==undefined){
        var str="";
        str+="<div  class='hutankuang'  style='font-family:Microsoft YaHei;position:fixed;border: 1px solid rgba(1,1,1,0.1);color:#ffffff;left: 40%;top: 30%;z-index: 9999;background:rgba(1,1,1,0.3);padding: 15px   25px;box-sizing: border-box '>";
        str+=value;
        str+="</str>"
        $("body").append(str);
    }else {
        $(".hutankuang").html(value)
    }
    setTimeout(function () {
        $(".hutankuang").css("display","none")
    },2000)
}